Trazodone influence on rat sera beta-endorphins level

Comparison of trazodone, diazepame and dibenzepine influences on rat brain beta-endorphins content

The aim of our study was to establish the extent of influence of different psychotropic drugs to brain Beta-endorphins in experimental animals. The study was performed on albino Wistar rats (weight 250 g), treated with different psychoactive drugs. RIA technique was employed for quantification of brain beta-endorphins. Brain beta-endorphins were higher in experiment group treated with trazodone (929 pg/g +/- 44,43; X+/-SD), and dibenzepine (906,63 pg/g +/- 74,06), yet with lower brain content in rats treated with diazepam (841,55 pg/g +/- 68,47), compared to brain beta-endorphins content of control group treated with saline solution (0,95% NaCl) (873,5 pg/g +/- 44,89). Significant differences were obtained comparing brain beta-endorphins of trazodone vs. diazepam treated animals, with diazepam group having lower values (p<0,02). This study showed differences in changes of rat brain beta-endorphins contents when different psychoactive drugs are used. Therefore, we consider that beta-endorphins could be used for evaluation of effects of psychoactive drugs, as a useful parameter in therapy with these psycho-pharmaceuticals.

Beta-endorphins as possible markers for therapeutic drug monitoring

This study was performed in order to investigate possible role of brain beta-endorphins as markers of antidepressive drugs therapy monitoring. Experiment was done using amitriptyline and trazodone as antidepressants. For quantification of brain beta-endorphins we used RIA technique. Our results showed significant decrease of brain beta-endorphins concentration in drug-pretreated animals, vs. those in of control group treated with 0,95% NaCl. The lower values were obtained in trazodone pre-treated animals. This study shows that use of psychoactive drugs have influence on brain beta-endorphins concentration. beta-endorphins could be of great importance, used as markers for evaluation of patient treatment.

Effects of amitryptiline administration on rat sera and brain beta-endorphins

The aim of our study was to establish the influence of antidepressive drugs on serum and brain beta-endorphins in experimental animals. Experiment was performed on albino Wistar rats. Antidepressant amitryptiline was used, and for quantification of sera and brain beta-endorphins RIA technique. Our results showed difference between sera and brain beta-endorphins concentration in amitryptiline pretreated animals, vs. those in serum and brain of control group treated with 0.95% NaCl. This study shows that use of psychoactive drugs have influence on sera and brain beta-endorphins concentration. Beta-endorphins could be of great importance, used as markers for evaluation of antidepressant drug effects.

Sympathetic nervous system and neurotransmitters: their possible role in neuroimmunomodulation of multiple sclerosis and some other autoimmune diseases

Multiple sclerosis is still a disease without a cure. Although intensive research efforts have led to the development of drugs that modify the activity of the disease, most of them have various side effects and are expensive. At the same time it is becoming apparent that some remedies usually used to treat somatic and psychic disorders also have immunomodulating properties, and may help manage multiple sclerosis and other autoimmune diseases. We describe here the role of the sympathetic nervous system in the neuro-immune interaction in multiple sclerosis and other immune diseases with increased cellular immunity as well as neurochemical disturbances that take place in these disorders.